监测Kyagar冰川涌的动态和冰湖的反复排水,使用多源遥感来监测
Yongpeng Gao1, Jinliang Wang2, Shiyin Liu3
1Faculty of Geography, Yunnan Normal University, Kunming 650500, China; Key Laboratory of Resources and Environmental Remote Sensing for Universities in Yunnan, Kunming 650500, China; Center for Geospatial Information Engineering and Technology of Yunnan Province, Kunming 650500, China; Key Laboratory of Resource Environment and Sustainable Development of Oasis, Gansu Province, Northwest Normal University, Lanzhou 730070, China.
The Science of the total environment
|April 14, 2024
概括
基亚加冰川在2014年至2016年期间激增,形成了一个由冰覆盖的湖泊,爆发了五次. 降水量增加和亚冰川动态引发了浪潮和随后的冰川湖爆发洪水.
科学领域:
- 冰川学的冰川学
- 地球科学 地球科学 地球科学
- 遥感 遥感 遥感 遥感
背景情况:
- 冰川的激增是全球冰川危险的重要驱动因素.
- 了解浪潮动态对于预测冰川湖爆发洪水 (GLOF) 至关重要.
研究的目的:
- 为了研究Kyagar冰川激增的动态.
- 为了分析与其相关的冰湖的排水.
- 了解驱动冰川激增和GLOF的机制.
主要方法:
- 高时间分辨率的光学图像分析.
- 冰川表面速度和白色监测.
- 亚冰川动态和基底剪切应力评估.
主要成果:
- 基亚加冰川从2014年到2016年激增,转移了0.321±0.012立方公里的冰.
- 一个冰湖形成,在2015年至2019年间经历了五次爆发.
- 降水量的增加导致了质量积累,改变了基底剪切应力,并启动了滑动.
结论:
- 冰川的激增与降水,质量积累和基底动态有关.
- 冰的湖泊排水受到亚冰川路径和流入变化的影响.
- 需要进行进一步的现场观测,以改进冲浪模拟和危险减轻.
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